Give a fake email address
Change 2-3 didgits, smudge it so it's unreadable. If you want to be a little less subtle change the end to .no.uk

I remember the old trick with phone numbers worked well for some of my female friends. 770 5519 reads well in a mirror (use the french 7, with the extra line 1/2 down the length)
( Crap Little Monkey Deathstar, so good they built it twice, Fri 11 Dec 2009, 15:37, Reply)